ISSN:
1572-8854
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The diacetic acid adduct of guanidinium tetrabromochromate(II) crystallizes in the monoclinic crystal system:a=8.778,b=9.125,c=12.195 Å,β=89.84°, space groupP21/n,Z=2. The structure was determined using the heavy atom method followed by Fourier methods and refined by full-matrix least-squares toR=0.061 for 2221 observed reflections. The structure contains discrete [CrBr4(HO2CCH3)2]2− anions separated by [C(NH2)3]+ cations. The chromium(II) atom is six-coordinate withtrans pairs of Cr-Br bonds of unequal length (2.84 and 2.63 Å), and two acetic acid molecules completing the coordination.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01161296
Permalink